What is typically used to test the integrity of boiler safety devices?

The hydrostatic test is utilized to assess the integrity of boiler safety devices because it involves filling the system with water and raising the pressure to a predetermined level, which is higher than the normal operating pressure. This method allows operators to inspect the boiler for any leaks, weaknesses, or failures in safety mechanisms under controlled conditions. Since boiler safety devices must be able to withstand high pressures and provide reliable performance in emergency situations, this rigorous testing ensures that they function correctly and safeguard against potential hazards.

While other testing methods like leak tests, functional tests, and visual inspections are important in the overall maintenance and safety evaluation of boiler systems, they do not provide the same level of assurance regarding the ability of safety devices to handle pressure-related failures. Hydrostatic testing is specifically designed to identify weaknesses that could lead to catastrophic failures during operation.